Milin P.

Sr. Backend Engineer | Distributed Systems & APIs & Cloud Architecture

I am a Senior Backend Engineer with deep expertise in building high-performance, scalable, and secure backend systems using Golang, Rust, Ruby, Node.js, and Python. I specialize in distributed systems, API platforms, cloud-native infrastructure, and performance-critical services, helping startups and enterprises architect reliable systems that scale from MVP to millions of users. With a strong background in system design and production engineering, I focus on clean architecture, maintainable codebases, and measurable performance improvements. Core Technical Expertise Backend Languages & Frameworks • Golang (Gin, Fiber, Echo, gRPC, concurrency patterns) • Rust (Actix, Axum, Tokio, async systems, memory-safe high-performance services) • Ruby (Ruby on Rails, Sidekiq, background processing) • Node.js (Express, NestJS, Fastify) • Python (FastAPI, Django, Flask, async systems) Architecture & System Design • Microservices & modular monoliths • Event-driven architecture • High-throughput API design • REST, GraphQL, gRPC • WebSockets & real-time systems • Distributed caching strategies • Horizontal scaling & load balancing Databases & Messaging • PostgreSQL, MySQL • Redis (caching, pub/sub) • MongoDB • Kafka, RabbitMQ, NATS • DynamoDB • Query optimization & data modeling Cloud & DevOps • AWS (ECS, EKS, Lambda, RDS, S3, CloudWatch) • GCP & Azure • Docker & Kubernetes • Terraform / Infrastructure as Code • CI/CD automation • Observability (Prometheus, Grafana, ELK) Specialized Strengths High-Performance Systems (Go & Rust) • Built low-latency APIs handling high request volumes • Designed concurrent systems using Go routines and Rust async runtime • Optimized CPU and memory usage for performance-critical workloads Scalable Web Platforms (Ruby, Node, Python) • Designed large-scale SaaS applications • Built multi-tenant architectures • Implemented background job systems and event processing pipelines • Integrated payment gateways, auth systems, and third-party APIs Security & Reliability • OAuth2 / JWT authentication systems • RBAC and multi-tenant isolation • Rate limiting and DDoS mitigation • Automated testing and performance benchmarking Selected Experience • High-Traffic API Platform (Golang) Architected microservices serving large concurrent traffic with optimized database queries and Redis caching, reducing latency by 45%. • Low-Level Performance Service (Rust) Developed memory-safe, multi-threaded backend service for data processing with significantly reduced memory footprint. • SaaS Platform (Ruby on Rails) Designed multi-tenant backend architecture with background workers and scalable PostgreSQL schema. • Serverless Backend (Node/Python) Implemented AWS Lambda-based backend with event-driven workflows and automated scaling. Professional Background • Master's Degree in Computer Science • Strong system design & architecture mindset • Comfortable leading backend teams and mentoring developers • Clear communication, fluent English • Flexible with global time zones Why Clients Hire Me ✔ Senior-level architectural thinking ✔ Production-grade, scalable backend systems ✔ Clean, well-tested, maintainable code ✔ Strong ownership and delivery focus Let’s Build a Scalable System If you need a backend engineer who understands performance, scalability, and clean architecture across Go, Rust, Ruby, Node, and Python, I’m ready to help design and deliver your next backend platform.